Gervonta Davis & Gary Russell Jr. on May 20

America's youngest world champion, Gervonta Davis, will make his first world title defense in the opening bout and featherweight world champion Gary Russell Jr. will make his mandatory world title defense in the main event of a split-site, four-fight SHOWTIME CHAMPIONSHIP BOXING event on Saturday, May 20, live on SHOWTIME at 6 p.m. ET/3 p.m. […] The post Gervonta Davis & Gary Russell Jr. on May 20 appeared first on Boxing News 24.